Ultra low temperature batteries, with up to below 40 discharge and belwo 20 charging, high discharge efficiency, widely used in fields that require low temperature, such as military , subsea, medical, aerospace, and polar regions Lithium battery have good performance at low temperature .New series special in cold weather Brand Name:WORWORF Model Number:18650 15ML Battery Size:18*65 Place of Origin Guangdong, China Weight:39g 2g The charging ratio:0.5c The discharge rate:0.2c Product name:18500 Low temperature battery Max discharge current:7.5A Discharge Cut off Voltage:2.50V Nominal Energy:4.8Wh Initial AC Impedance: 35m Cycle life:500 Times Operating Temperature Charge:below 20 to 45 Operating Temperature Discharge:below 30 to 85 Packaging Details 2pcs in a plastic box,customized acceptable Port Shenzhen Supply Ability Supply Ability 1000000 Piece per Week